White Gaussian Noise Energy Estimation and Wavelet Multi-threshold De-noising for Heart Sound Signals

White Gaussian noise (WGN) commonly exists in acquisition and transmission of heart sound (HS) signals. The energy distributions of WGN and HS in wavelet decomposition levels (WDLs) are explored. The statistical analysis indicates that for WGN, energy proportions of detail portions of WDLs and energ...

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Veröffentlicht in:	Circuits, systems, and signal processing systems, and signal processing, 2014-09, Vol.33 (9), p.2987-3002
Hauptverfasser:	Zeng, Kehan, Huang, Jun, Dong, Mingchui
Format:	Artikel
Sprache:	eng
Schlagworte:	Circuits and Systems Computer science Electrical Engineering Electronics and Microelectronics Energy distribution Engineering Errors Gaussian Heart Instrumentation Mathematical analysis Monte Carlo simulation Noise Short Paper Signal,Image and Speech Processing Sound Wavelet Wavelet transforms
Online-Zugang:	Volltext
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